Cerebrogenic tachyarrhythmia in acute stroke

ABSTRACTThe electrocardiac abnormalities following acute stroke are frequent and seen in both ischemic and hemorrhagic stroke. The changes seen in electrocardiogram (ECG) consist of repolarization abnormalities such as ST elevation, ST depression, negative T waves, and QT prolongation. Among tachyarrhythmias, atrial fibrillation is the most common and occurrence of focal atrial tachycardia is very rare though any cardiac arrhythmias can follow acute stroke. We report a case of focal atrial tachycardia following acute ischemic stroke in 50-year-old female without structural heart disease, and their mechanisms and clinical implications.

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Electrocardiogram Recognition and Ablation of Atrial Tachycardia

Asia Pacific Cardiology ◽

10.15420/apc.2011:3:1:80 ◽

2011 ◽

Vol 3 (1) ◽

pp. 80

Author(s):

Alexander Feldman ◽

Jonathan M Kalman ◽

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Keyword(s):

Catheter Ablation ◽

Atrial Tachycardia ◽

Primary Treatment ◽

P Wave ◽

Wave Morphology ◽

Focal Atrial Tachycardia ◽

Mapping Techniques ◽

Electrocardiogram Ecg ◽

Surface Electrocardiogram

Focal atrial tachycardia (AT) is a relatively uncommon cause of supraventricular tachycardia, but when present is frequently difficult to treat medically. Atrial tachycardias tend to originate from anatomically determined atrial sites. The P-wave morphology on surface electrocardiogram (ECG) together with more sophisticated contemporary mapping techniques facilitates precise localisation and ablation of these ectopic foci. Catheter ablation of focal AT is associated with high long-term success and may be viewed as a primary treatment strategy in symptomatic patients.

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Electrocardiogram Recognition and Ablation of Atrial Tachycardia

European Cardiology Review ◽

10.15420/ecr.2010.6.4.58 ◽

2010 ◽

Vol 6 (4) ◽

pp. 58

Author(s):

Alexander Feldman ◽

Jonathan M Kalman ◽

◽

Keyword(s):

Catheter Ablation ◽

Atrial Tachycardia ◽

Primary Treatment ◽

P Wave ◽

Wave Morphology ◽

Focal Atrial Tachycardia ◽

Mapping Techniques ◽

Electrocardiogram Ecg ◽

Surface Electrocardiogram

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Electrocardiographic Abnormalities and Troponin Elevation in COVID-19

10.1101/2020.11.12.20230565 ◽

2020 ◽

Author(s):

Ehud Chorin ◽

Matthew Dai ◽

Edward Kogan ◽

Lalit Wadhwani ◽

Eric Shulman ◽

...

Keyword(s):

Laboratory Finding ◽

Laboratory Data ◽

Clinical Severity ◽

Troponin Elevation ◽

St Depression ◽

Wave Inversion ◽

St Elevation ◽

Ecg Abnormalities ◽

Electrocardiographic Abnormalities ◽

Repolarization Abnormalities

AbstractBackgroundthe COVID19 pandemic has resulted in worldwide morbidity at unprecedented scale. Troponin elevation is a frequent laboratory finding in hospitalized patients with the disease, and may reflect direct vascular injury or nonspecific supply-demand imbalance. In this work, we assessed the correlation between different ranges of Troponin elevation, Electrocardiographic (ECG) abnormalities and mortality.MethodsWe retrospectively studied 204 consecutive patients hospitalized at NYU Langone Health with COVID19. Serial ECG tracings were evaluated in conjunction with laboratory data including Troponin. Mortality was analyzed in respect to the degree of Troponin elevation and the presence of ECG changes including ST elevation, ST depression or T wave inversion.ResultsMortality increased in parallel with increase in Troponin elevation groups and reached 60% when Troponin was >1 ng/ml. In patients with mild Troponin rise (0.05 – 1.00 ng/ml) the presence of ECG abnormality resulted in significantly greater mortality.ConclusionECG repolarization abnormalities may represent a marker of clinical severity in patients with mild elevation in Troponin values. This finding can be used to enhance risk stratification in patients hospitalized with COVID19.

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